Your parental rights are not secured
Parents have the duty to care for their children's well being until they are old enough to take care of themselves, which means having the ability and maturity to make their own decisions.
I think parents in the US assume that they have this control and right (derived from the duty) but maybe they are unaware that the administrative state (the various bureaucrats in departments of health, in conjunction with insurance companies) have taken their sovereignty away.
Do you assume that you will know and have the right to make decisions about your teen's health care in general? Here is a representative letter sent to parents in MN, but it could be about your child, wherever you are:
Only if you have had the forethought to get your child to consent to give you access, will you actually have it. But it's very strange. Think about it. If he's a minor and by definition not able to give informed consent (the whole reason he has parents or legal guardian), how is he giving you consent?
More to the point, what authority besides the parent (or legal guardian) is interposed here? What is its nature? It is simply... the administrative state, ready to step in if you have overlooked this important step of obtaining access... from a person not legally able to give it.
If you haven't obtained this access, and your child has to go to the hospital, let's say, you could be boxed out of calling the shots on his care. I think that because most children are basically healthy and most high-functioning parents will not be impeded, we are unaware of this lurking danger. Certainly parents in difficult situations or without a certain kind of education or status are at risk for losing their God-given rights over their child.
And the potential for the administrative state to take over the child's medical freedom under the guise of privacy is there. For instance, many states have legislation pending to remove the "immunizations" language you see here in the Minnesota example.